Electrohydraulic aggregate with a compact construction

Abstract

An electrohydraulic aggregate for converting electric energy into mechanical energy, comprising an electric motor with a stator and with a rotor, comprising magnets or electric windings that produce electromagnetic fields, at least one connecting component for connecting the windings to at least one energy supply, with the connecting component extending through at least one through-hole, the through-hole is provided in an accommodating member accommodating electrohydraulic valves as well as at least one piston pump for the energy supply of a slip-controlled brake system, the piston pump being connected to the electric motor by a gear, and a rotor mounting support comprising at least two spaced rotor bearings, of which at least one so-called A-bearing supports a shaft in the accommodating member, and a so-called B-bearing that is supported in a pot-shaped motor housing.

1. Electrohydraulic aggregate for converting electric energy into mechanical energy, comprising an electric motor with a stator and with a rotor, comprising magnets, and electric windings that produce electromagnetic fields, the windings supported on a winding support of the rotor, at least one connecting component for connecting the windings to at least one energy supply, with the connecting component extending into at least one through-hole, the through-hole being provided in an accommodating member accommodating electrohydraulic valves as well as at least one piston pump for the energy supply of a slip-controlled brake system, the piston pump being connected to the electric motor by a gear, and a rotor mounting support comprising at least two spaced bearings, of which at least one A-bearing supports the rotor through a shaft in the accommodating member, and a B-bearing bypassing the shaft, directly supports the rotor, wherein the B-bearing is positioned between the winding support and an unrotatable axle, wherein the unrotatable axle is a separate component, a housing of the motor includes an accommodation for the unrotatable axle, and the unrotatable axle is positioned in the accommodation, with the accommodation being provided as a bowl. 
     
     
       2. Electrohydraulic aggregate as claimed in  claim 1 , wherein an eccentric bearing is provided between the A-bearing and B-bearing, or the eccentric bearing is provided at a free end of the shaft beside the B-bearing. 
     
     
       3. Electrohydraulic aggregate as claimed in  claim 1 , wherein an eccentric bearing is arranged between the A-bearing and an additional thrust bearing, with the A-bearing and the thrust bearing being supported in the accommodating member. 
     
     
       4. Electrohydraulic aggregate as claimed in  claim 1 , wherein the A-bearing and B-bearing are configured either uniformly or alternately differently as roller bearings, friction bearings or a combination thereof. 
     
     
       5. Electrohydraulic aggregate as claimed in  claim 1 , wherein the axle is arranged at a bowl bottom and points in the direction of the bowl's interior. 
     
     
       6. Electrohydraulic aggregate as claimed in  claim 1 , wherein the axle in an axial direction (A) engages into a recess of the winding support. 
     
     
       7. Electrohydraulic aggregate as claimed in  claim 1 , wherein the axle is inserted, press-fitted or welded into the accommodation of the motor housing. 
     
     
       8. Electrohydraulic aggregate as claimed in  claim 1 , wherein the bowl is deepdrawn convexly in an outward direction and does not project from a plane that is defined by a largely plane bottom of the motor housing. 
     
     
       9. Electrohydraulic aggregate as claimed in  claim 1 , wherein the bowl includes a cylindrical wall and a bottom. 
     
     
       10. Electrohydraulic aggregate as claimed in  claim 1 , wherein the winding support accommodates the B-bearing, with the B-bearing in an axial direction (A) being provided so as to be substantially integrated in the winding support. 
     
     
       11. Electrohydraulic aggregate as claimed in  claim 10 , wherein the winding support is made of sintered material. 
     
     
       12. Electrohydraulic aggregate for converting electric energy into mechanical energy, comprising an electric motor with a stator and with a rotor, comprising magnets, and electric windings that produce electromagnetic fields, the windings supported on a winding support of the rotor, at least one connecting component for connecting the windings to at least one energy supply, with the connecting component extending into at least one through- hole, the through-hole being provided in an accommodating member accommodating electrohydraulic valves as well as at least one piston pump for the energy supply of a slip-controlled brake system, the piston pump being connected to the electric motor by a gear, and a rotor mounting support comprising at least two spaced bearings, of which at least one A-bearing supports the rotor through a shaft in the accommodating member, and a B-bearing bypassing the shaft, directly supports the rotor, wherein the B-bearing is positioned between the winding support and an unrotatable axle, wherein the shaft and the winding support, being composed of a sintered material, have an integral design, wherein the unrotatable axle is a separate component, a housing of the motor includes an accommodation for the unrotatable axle, and the unrotatable axle is positioned in the accommodation, with the accommodation being provided as a bowl. 
     
     
       13. Electrohydraulic aggregate as claimed in  claim 1 , wherein the rotor has an axially directed commutator, which is contacted by carbon brushes being arranged in parallel to an axis of rotation in the at least one through-hole. 
     
     
       14. Electrohydraulic aggregate as claimed in  claim 13 , wherein the accommodating member includes two additional through-holes for carbon brush cases, which enclose an angle of 180° or less. 
     
     
       15. Electrohydraulic aggregate as claimed in  claim 14 , wherein the carbon brush cases are provided with integrated anti-interference means. 
     
     
       16. Electrohydraulic aggregate as claimed in  claim 13 , wherein the commutator has a multi-piece design and is joined from at least two components, and commutator hooks for windings and commutator segments for carbon brushes are provided on components, which can be separated from one another and can be joined by being plugged into each other. 
     
     
       17. Electrohydraulic aggregate as claimed in  claim 1 , wherein the winding support extends radially from the shaft, and the B-bearing is at least partially positioned in a recess formed in the winding support. 
     
     
       18. Electrohydraulic aggregate as claimed in  claim 17 , wherein at least one of the magnets or electric windings are supported on a terminal end of the winding support in which the recess is formed. 
     
     
       19. Electrohydraulic aggregate as claimed in  claim 17 , wherein the winding support at least partially overlaps the B-bearing. 
     
     
       20. Electrohydraulic aggregate as claimed in  claim 1 , wherein the accommodating member includes two additional through-holes for carbon brush cases and the additional through-holes for carbon brush cases are separated by an angle of 90° with respect to the shaft in the accommodating member.